Cited by 262Neuroscience and Neuropharmacology ResearchCancer, Hypoxia, and MetabolismNeurological Disorders and Treatments

Brain Lactate Is an Obligatory Aerobic Energy Substrate for Functional Recovery After Hypoxia: Further In Vitro Validation

Schurr, Avital, Payne, Ralphiel S., Miller, James J., Rigor, Benjamin M.·1997·Journal of Neurochemistry

Abstract

This study used the rat hippocampal slice preparation and the monocarboxylate transporter inhibitor, alpha-cyano-4-hydroxycinnamate (4-CIN), to assess the obligatory role that lactate plays in fueling the recovery of synaptic function after hypoxia upon reoxygenation. At a concentration of 500 microM, 4-CIN blocked lactate-supported synaptic function in hippocampal slices under normoxic conditions in 15 min. The inhibitor had no effect on glucose-supported synaptic function. Of control hippocampal slices exposed to 10-min hypoxia, 77.8 +/- 6.8% recovered synaptic function after 30-min reoxygenation. Of slices supplemented with 500 microM 4-CIN, only 15 +/- 10.9% recovered synaptic function despite the large amount of lactate formed during the hypoxic period and the abundance of glucose present before, during, and after hypoxia. These results indicate that 4-CIN, when present during hypoxia and reoxygenation, blocks lactate transport from astrocytes, where the bulk of anaerobic lactate is formed, to neurons, where lactate is being utilized aerobically to support recovery of function after hypoxia. These results unequivocally validate that brain lactate is an obligatory aerobic energy substrate for posthypoxia recovery of function.

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Crossref · 10.1046/j.1471-4159.1997.69010423.x

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Authors
Schurr, A., Payne, R. S., Miller, J. J., & Rigor, B. M.
Affiliations
  • University of Louisville (US)
  • Pediatrics and Genetics (US)
Corresponding author
Schurr, Avital
Venue
Journal of Neurochemistry
Publisher
Wiley
Published
1997-07
Volume
69
Issue
1
Pages
423-426
ISSN
  • 0022-3042 (ISSN-L)
  • 1471-4159
OpenAlex
W1990158364
Cited by
262
References
0
Citations by year
2026: 1 · 2025: 5 · 2024: 2 · 2023: 5 · 2022: 4 · 2021: 4 · 2020: 5 · 2019: 2 · 2018: 4 · 2017: 8 · 2016: 7 · 2015: 9 · 2014: 16 · 2013: 9 · 2012: 9
FWCI
4.66
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Neurochemistry (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › Cancer, Hypoxia, and Metabolism
  • Life Sciences › Neuroscience › Neurology › Neurological Disorders and Treatments
Keywords
brain lactate, hypoxia, reoxygenation, monocarboxylate transporters, HCCA, hippocampus, astrocytes, lactate transport, aerobic metabolism, glucose utilization
MeSH terms
Animals, Brain Chemistry, Coumaric Acids, Electrophysiology, Energy Metabolism, Glucose, Hippocampus, Lactates, Male, Organ Culture Techniques, Synapses, Cell Hypoxia, Rats, Sprague-Dawley, Rats

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